Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 77, NWS Tallahassee, FL

June 15, 201115 counties in Florida

NWS Tallahassee, FL issued this red flag warning at Jun 15, 2011, 2:26 AM CDT for 15 counties in Florida. It took effect at Jun 15, 2011, 1:00 PM CDT. It was in force for 6 hr. 6 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 15, 2011, 2:26 AM CDT (07:26 UTC)
In effect from
Jun 15, 2011, 1:00 PM CDT
Expired
Jun 15, 2011, 7:00 PM CDT
In force
6 hr
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL

The radar

The Tallahassee radar (KTLH), 40 km from the middle of the area, began a volume at 07:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 15, 4:00 PM CDTHAIL 0.884 Sse Tallahassee Coml, FLREPORTED ON CAPITAL CIRCLE SE EAST OF WOODVILLE HIGHWAY
Jun 15, 4:10 PM CDTHAIL 0.882 Ese Tallahassee Coml, FLDIME TO NICKEL SIZE HAIL REPORTED NEAR THE INTERSECTION OF OLD ST. AUGUSTINE ROAD AND BLAIRSTONE ROAD
Jun 15, 4:15 PM CDTHAIL 0.752 S Tallahassee Coml Ai, FLPEA TO PENNY SIZE HAIL COVERING THE GROUND AT THE TALLAHASSEE FAIRGROUNDS
Jun 15, 5:15 PM CDTHAIL 0.881 Ssw Blocker, FLDIME TO NICKEL SIZE HAIL WAS REPORTED NEAR THE SUMMERBROOKE GOLF COURSE.
Jun 15, 5:20 PM CDTTSTM WND DMG4 Ese Hanson, FLTREES DOWN IN THE HICKORY GROOVE AREA NORTHEAST OF MADISON AND SOUTH-SOUTHEAST OF PINETTA WITH POSSIBLE ROOF DAMAGE. TRAMPOLINE ALSO WRAPPED AROUND A TREE.
Jun 15, 6:55 PM CDTHAIL 0.88Greenwood, FLPHOTO TAKEN OF HAIL AROUND NICKEL SIZE NEAR GREENWOOD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.4 hours before the alert went out and 43 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2011-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 685 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2011-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
685 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
2563 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

233 
WWUS82 KTAE 150726
RFWTAE

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
326 AM EDT WED JUN 15 2011

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING FOR INLAND
PORTIONS OF THE FLORIDA BIG BEND AND EASTERN PANHANDLE DUE TO
THE COMBINATION OF LOW RELATIVE HUMIDITY AND HIGH
DISPERSIONS...

.VERY HOT TEMPERATURES THIS AFTERNOON WILL ALLOW HUMIDITY TO DROP
BELOW 35 PERCENT ACROSS INLAND PORTIONS OF THE FLORIDA BIG BEND
AND PANHANDLE. VERY HIGH MIXING HEIGHTS AND MODEST NORTHWESTERLY
TRANSPORT WINDS WILL CONTRIBUTE TO DISPERSION VALUES WELL ABOVE
75. THEREFORE...WILL UPGRADE THE CURRENT FIRE WEATHER WATCH TO A
RED FLAG WARNING. SLIGHTLY LOWER TEMPERATURES AND HIGHER DEWPOINTS
ON THURSDAY SHOULD KEEP HUMIDITY LEVELS AT OR JUST ABOVE CRITICAL
VALUES DURING THE AFTERNOON. THUS...WILL NOT NEED TO ISSUE A FIRE
WEATHER WATCH AT THIS TIME.

FLZ034-150830-
/O.CAN.KTAE.FW.A.0062.110615T1800Z-110616T0000Z/
INLAND DIXIE-
326 AM EDT WED JUN 15 2011

...FIRE WEATHER WATCH FOR TUESDAY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS CANCELLED THE
FIRE WEATHER WATCH. 

RELATIVE HUMIDITY VALUES ARE FORECAST TO REMAIN ABOVE 35 PERCENT.

$$

FLZ007>019-026>029-160000-
/O.UPG.KTAE.FW.A.0062.110615T1800Z-110616T0000Z/
/O.NEW.KTAE.FW.W.0077.110615T1800Z-110616T0000Z/
INLAND WALTON-CENTRAL WALTON-HOLMES-WASHINGTON-JACKSON-INLAND BAY-
CALHOUN-INLAND GULF-INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-
MADISON-LIBERTY-INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-
326 AM EDT WED JUN 15 2011 /226 AM CDT WED JUN 15 2011/

...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS
AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. LOW RELATIVE HUMIDITY
WILL ENHANCE FIRE GROWTH POTENTIAL.

&&

$$

CAMP

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 2:53 PM CDTHeat AdvisoryTAEBay, Calhoun, Franklin, Gadsden, Gulf, Leon and 1 more24 hr
Jun 15, 3:45 PM CDTSpecial Weather StatementTAELeon45 min
Jun 15, 4:27 PM CDTSpecial Weather StatementTAEWakulla33 min
Jun 15, 5:01 PM CDTSpecial Weather StatementTAELeon, Wakulla59 min

Nearby

Red Flag Warnings in Florida, 2011Every red flag warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.